Bug 184144

Description of problem:
kernel ignores setting of
/proc/sys/kernel/exec-shield-randomize

There is no apparent way to run without address space randomization leaving us
with non-deterministic results in some programs.

Version-Release number of selected component (if applicable):
2.4.21-32.ELsmp 

I read the release notes for the -37 release and it made no mention of a fix for
this.

How reproducible:

always

Steps to Reproduce:

1.  Write a little test:

#include <stdio.h>

int main(){
  int x;
  printf("addr of x is %x\n", &x);
  return 0;
}



2.  become root and do:
# echo 0 > /proc/sys/kernel/exec-shield
# echo 0 > /proc/sys/kernel/exec-shield-randomize

3.  run test program several times
  
Actual results:
# ./a.out
addr of x is bfff9f74
# ./a.out
addr of x is bfffaa24
# ./a.out
addr of x is bfffde74

Expected results:
# ./a.out
addr of x is bfff9f74
# ./a.out
addr of x is bfff9f74
# ./a.out
addr of x is bfff9f74

(or some other non-changing address)


Additional info:
FYI: The exec-shield-randomize appears to have been replaced by
randomize_va_space in Fedora Core 4.  There, when I do echo 0 >
/proc/sys/kernel/randomize_va_space I get expected results.